HESI LPN
HESI Fundamentals Practice Questions
1. A healthcare professional is preparing to administer lactated Ringer's (LR) IV 100 mL over 15 min. How many mL/hr should the IV infusion pump be set to deliver? (Round the answer to the nearest whole number. Do not use a trailing zero.)
- A. 400 mL/hr
- B. 200 mL/hr
- C. 300 mL/hr
- D. 250 mL/hr
Correct answer: A
Rationale: To administer 100 mL over 15 min, the IV pump should be set to deliver 400 mL/hr. This calculation is based on the concept that if 100 mL is given in 15 minutes, to find out how many milliliters are given in an hour, you would multiply by 4 (since 15 minutes is a quarter of an hour). Therefore, 100 mL x 4 = 400 mL per hour. Choices B, C, and D are incorrect as they do not reflect the correct calculation for the infusion rate required to administer 100 mL over 15 minutes.
2. The client is post-operative following abdominal surgery. Which of the following assessment findings would require immediate intervention?
- A. Absent bowel sounds
- B. Saturated abdominal dressing
- C. Pain level of 8/10
- D. Temperature of 100.4°F
Correct answer: B
Rationale: A saturated abdominal dressing is a critical finding that may indicate active bleeding or wound complications. Immediate intervention is necessary to prevent further complications, such as hypovolemic shock or infection. Absent bowel sounds, though abnormal, are a common post-operative finding and do not require immediate intervention. Pain level of 8/10 can be managed effectively with appropriate pain control measures and does not indicate an urgent issue. A temperature of 100.4°F is slightly elevated but may be a normal post-operative response to surgery and does not typically require immediate intervention unless accompanied by other concerning signs or symptoms.
3. When is a depressed client at highest risk for attempting suicide?
- A. Immediately after admission, during one-to-one observation
- B. 7 to 14 days after initiation of antidepressant medication and psychotherapy
- C. Following an angry outburst with family
- D. When the client is removed from the security room
Correct answer: B
Rationale: Depressed clients are at the highest risk of attempting suicide 7 to 14 days after starting antidepressant medication and psychotherapy. During this time, they may start to regain energy but still feel hopeless, which can increase the risk of suicidal ideation and behavior. Choices A, C, and D are incorrect because immediate post-admission, after an angry outburst with family, or when removed from a security room are not specific periods known to be associated with the highest risk of suicide in depressed clients.
4. A healthcare professional is planning to perform ear irrigation on an adult client with impacted cerumen. Which of the following should the professional plan to take?
- A. Wearing sterile gloves while performing irrigation
- B. Positioning the client with the affected side down following irrigation
- C. Using cool fluid to irrigate the ear canal
- D. Pulling the pinna downward during irrigation
Correct answer: B
Rationale: Positioning the client with the affected side down following irrigation is crucial as it helps facilitate drainage of the dislodged cerumen and any remaining irrigation solution. This position allows gravity to assist in the removal of the loosened debris. Wearing sterile gloves is a standard precaution in healthcare procedures to prevent infection but is not specific to ear irrigation. Using body-temperature water or a solution at a slightly warmer temperature is recommended to prevent vertigo and discomfort, so using cool fluid is incorrect. Pulling the pinna upward and backward, not downward, straightens the ear canal for adults to facilitate the irrigation process, making choice D incorrect.
5. The patient is being taught about flossing and oral hygiene. What instruction will the nurse include in the teaching session?
- A. Using waxed floss helps prevent bleeding
- B. Flossing removes plaque and tartar from the teeth
- C. Flossing at least 3 times a day is beneficial
- D. Applying toothpaste before flossing is harmful
Correct answer: B
Rationale: The correct answer is B. Flossing is essential for removing plaque and tartar between teeth, contributing to better oral hygiene. Choice A is not entirely accurate as waxed floss may not solely prevent bleeding. Flossing three times a day, as mentioned in choice C, can be excessive and unnecessary, while choice D is incorrect as applying toothpaste before flossing is not harmful but might not provide additional benefits.
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